The higher the frequency, the less the resistance of biological tissue to electromagnetic fields - up to the point where the cell membranes are capacitively coupled. This effect is created by the CURIS 4 MHz radiofrequency generator in all monopolar and bipolar modes. When using conventional electrosurgical units the electromagnetic field concentrates between the cells and only heats up the outer layer. However, with the CURIS 4 MHz radiofrequency generator, cell membranes are conductive, and energy is absorbed evenly inside the cells. As a result, energy is administered gently and in a highly focused fashion. Precise monopolar cuts are possible while lateral heat damage is kept to a minimum.²